<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>MultiSpi xref</title>
<link type="text/css" rel="stylesheet" href="../../../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../../apidocs/com/qrmedia/commons/multispi/MultiSpi.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * @(#)MultiSpi.java     4 Dec 2010</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * Copyright © 2010 Andrew Phillips.</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * ====================================================================</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or </em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> * implied.</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_comment"> * ====================================================================</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">package</strong> com.qrmedia.commons.multispi;
<a class="jxr_linenumber" name="22" href="#22">22</a>  
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.base.Predicates.not;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.base.Predicates.notNull;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.collect.Iterables.*;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.collect.Lists.newArrayList;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.collect.Sets.newHashSet;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> com.google.common.collect.Sets.newHashSetWithExpectedSize;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> java.lang.String.format;
<a class="jxr_linenumber" name="30" href="#30">30</a>  
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Constructor;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.InvocationTargetException;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> java.util.ServiceLoader;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.util.Set;
<a class="jxr_linenumber" name="35" href="#35">35</a>  
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> javax.annotation.Nonnull;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> javax.annotation.concurrent.ThreadSafe;
<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> javax.inject.Inject;
<a class="jxr_linenumber" name="39" href="#39">39</a>  
<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> com.google.common.annotations.VisibleForTesting;
<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> com.google.common.base.Function;
<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> com.google.common.base.Predicate;
<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> com.qrmedia.commons.multispi.config.MultiSpiBuilder;
<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> com.qrmedia.commons.multispi.provider.ServiceImplementationProvider;
<a class="jxr_linenumber" name="45" href="#45">45</a>  
<a class="jxr_linenumber" name="46" href="#46">46</a>  
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <em class="jxr_javadoccomment"> * One-stop shop for users of MultiSpi. Instances should be created via dependency</em>
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment"> * injection or using the {@link MultiSpiBuilder}.</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment"> * @author aphillips</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> * @see ServiceLoader</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> * @since 4 Dec 2010</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  @ThreadSafe
<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">MultiSpi</a> {
<a class="jxr_linenumber" name="58" href="#58">58</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Set&lt;ServiceImplementationProvider&gt; providers = newHashSet();
<a class="jxr_linenumber" name="59" href="#59">59</a>      <em class="jxr_comment">// ready for @Inject</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">InstanceFactory</a> instanceFactory = <strong class="jxr_keyword">new</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">PublicNoargConstructorInstanceFactory</a>();
<a class="jxr_linenumber" name="61" href="#61">61</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">ClassLoaderSupplier</a> loaderSupplier = <strong class="jxr_keyword">new</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">ClassLoaderSupplier</a>();
<a class="jxr_linenumber" name="62" href="#62">62</a>      
<a class="jxr_linenumber" name="63" href="#63">63</a>      @Inject
<a class="jxr_linenumber" name="64" href="#64">64</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">MultiSpi</a>(@Nonnull Set&lt;ServiceImplementationProvider&gt; providers) {
<a class="jxr_linenumber" name="65" href="#65">65</a>          <strong class="jxr_keyword">this</strong>.providers.addAll(providers);
<a class="jxr_linenumber" name="66" href="#66">66</a>      }
<a class="jxr_linenumber" name="67" href="#67">67</a>      
<a class="jxr_linenumber" name="68" href="#68">68</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="69" href="#69">69</a>  <em class="jxr_javadoccomment">     * Shorthand for {@link #findImplementationNames(Class, ClassLoader) findImplementationNames(serviceClass, defaultClassLoader)}</em>
<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     * where {@code defaultClassLoader} is</em>
<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;{@link Thread#getContextClassLoader() Thread.currentThread().getContextClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;{@link ClassLoader#getSystemClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="74" href="#74">74</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;the bootstrap classloader otherwise</em>
<a class="jxr_linenumber" name="75" href="#75">75</a>  <em class="jxr_javadoccomment">     * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="76" href="#76">76</a>  <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">     * @return a set of names of classes designated as implementing the requested service</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="80" href="#80">80</a>      <strong class="jxr_keyword">public</strong> @Nonnull Set&lt;String&gt; findImplementationNames(@Nonnull <strong class="jxr_keyword">final</strong> Class&lt;?&gt; serviceClass) {
<a class="jxr_linenumber" name="81" href="#81">81</a>          <strong class="jxr_keyword">return</strong> findImplementationNames(serviceClass, findDefaultLoader());
<a class="jxr_linenumber" name="82" href="#82">82</a>      }
<a class="jxr_linenumber" name="83" href="#83">83</a>      
<a class="jxr_linenumber" name="84" href="#84">84</a>      <strong class="jxr_keyword">private</strong> ClassLoader findDefaultLoader() {
<a class="jxr_linenumber" name="85" href="#85">85</a>          <strong class="jxr_keyword">return</strong> find(newArrayList(loaderSupplier.getContextClassLoader(),
<a class="jxr_linenumber" name="86" href="#86">86</a>                  loaderSupplier.getSystemClassLoader(), loaderSupplier.getBootstrapClassLoader()), notNull());
<a class="jxr_linenumber" name="87" href="#87">87</a>      }
<a class="jxr_linenumber" name="88" href="#88">88</a>      
<a class="jxr_linenumber" name="89" href="#89">89</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * Finds the names of classes implementing the requested service, as determined</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * by the available providers.</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     * Note that individual providers may or may &lt;u&gt;not&lt;/u&gt; guarantee that the classes</em>
<a class="jxr_linenumber" name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     * returned &lt;em&gt;actually&lt;/em&gt; implement the interface!</em>
<a class="jxr_linenumber" name="95" href="#95">95</a>  <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="96" href="#96">96</a>  <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="97" href="#97">97</a>  <em class="jxr_javadoccomment">     * @param classpathResourceLoader the class loader to be used to locate classpath resources</em>
<a class="jxr_linenumber" name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * @return a set of names of classes designated as implementing the requested service</em>
<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="100" href="#100">100</a>     <strong class="jxr_keyword">public</strong> @Nonnull Set&lt;String&gt; findImplementationNames(@Nonnull <strong class="jxr_keyword">final</strong> Class&lt;?&gt; serviceClass,
<a class="jxr_linenumber" name="101" href="#101">101</a>             @Nonnull <strong class="jxr_keyword">final</strong> ClassLoader classpathResourceLoader) {
<a class="jxr_linenumber" name="102" href="#102">102</a>         <strong class="jxr_keyword">return</strong> newHashSet(concat(transform(providers, <strong class="jxr_keyword">new</strong> Function&lt;ServiceImplementationProvider, Set&lt;String&gt;&gt;() {
<a class="jxr_linenumber" name="103" href="#103">103</a>                 <strong class="jxr_keyword">public</strong> Set&lt;String&gt; apply(<a href="../../../../com/qrmedia/commons/multispi/provider/ServiceImplementationProvider.html">ServiceImplementationProvider</a> from) {
<a class="jxr_linenumber" name="104" href="#104">104</a>                     <strong class="jxr_keyword">return</strong> from.findServiceImplementations(serviceClass, classpathResourceLoader);
<a class="jxr_linenumber" name="105" href="#105">105</a>                 }
<a class="jxr_linenumber" name="106" href="#106">106</a>             })));
<a class="jxr_linenumber" name="107" href="#107">107</a>     }
<a class="jxr_linenumber" name="108" href="#108">108</a>     
<a class="jxr_linenumber" name="109" href="#109">109</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     * Shorthand for {@link #findImplementations(Class, ClassLoader) findImplementations(serviceClass, defaultClassLoader)}</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment">     * where {@code defaultClassLoader} is</em>
<a class="jxr_linenumber" name="112" href="#112">112</a> <em class="jxr_javadoccomment">     * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="113" href="#113">113</a> <em class="jxr_javadoccomment">     * &lt;li&gt;{@link Thread#getContextClassLoader() Thread.currentThread().getContextClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment">     * &lt;li&gt;{@link ClassLoader#getSystemClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment">     * &lt;li&gt;the bootstrap classloader otherwise</em>
<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment">     * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment">     * @param &lt;S&gt; the type of the service</em>
<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment">     * @return a set of classes of implementations of the service</em>
<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment">     * @throws ClassCastException if any of the classes are not actually implementations</em>
<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_javadoccomment">     *                            of the requested service</em>
<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_javadoccomment">     * @throws ClassNotFoundException if any of the classes cannot be loaded    </em>
<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment">     * @see #findImplementations(Class, ClassLoader)</em>
<a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="126" href="#126">126</a>     <strong class="jxr_keyword">public</strong> @Nonnull &lt;S&gt; Set&lt;Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt;&gt; findImplementations(
<a class="jxr_linenumber" name="127" href="#127">127</a>             @Nonnull Class&lt;S&gt; serviceClass) <strong class="jxr_keyword">throws</strong> ClassCastException, ClassNotFoundException {
<a class="jxr_linenumber" name="128" href="#128">128</a>         <strong class="jxr_keyword">return</strong> findImplementations(serviceClass, findDefaultLoader());
<a class="jxr_linenumber" name="129" href="#129">129</a>     }
<a class="jxr_linenumber" name="130" href="#130">130</a>     
<a class="jxr_linenumber" name="131" href="#131">131</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     * Finds the classes implementing the requested service, as determined by the </em>
<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     * available providers.</em>
<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment">     * This method will check whether the classes found do, in fact, implement the</em>
<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment">     * requested service, and a {@code ClassCastException} will be thrown if any</em>
<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment">     * of the classes does not.</em>
<a class="jxr_linenumber" name="138" href="#138">138</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment">     * If more lenient behaviour is desired (e.g. skipping any classes that cannot be</em>
<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment">     * found, or do not actually implement the interface), use </em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">     * {@link #findImplementationNames(Class)} instead.</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">     * @param &lt;S&gt; the type of the service</em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment">     * @param implementationLoader the class loader to be used to attempt to load the classes</em>
<a class="jxr_linenumber" name="146" href="#146">146</a> <em class="jxr_javadoccomment">     * @return a set of instances of implementations of the service</em>
<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment">     * @throws ClassCastException if any of the classes are not actually implementations</em>
<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment">     *                            of the requested service</em>
<a class="jxr_linenumber" name="149" href="#149">149</a> <em class="jxr_javadoccomment">     * @throws ClassNotFoundException if any of the classes cannot be loaded                           </em>
<a class="jxr_linenumber" name="150" href="#150">150</a> <em class="jxr_javadoccomment">     * @see #findImplementations(Class)</em>
<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="152" href="#152">152</a>     @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a class="jxr_linenumber" name="153" href="#153">153</a>     <strong class="jxr_keyword">public</strong> @Nonnull &lt;S&gt; Set&lt;Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt;&gt; findImplementations(
<a class="jxr_linenumber" name="154" href="#154">154</a>             @Nonnull Class&lt;S&gt; serviceClass, @Nonnull <strong class="jxr_keyword">final</strong> ClassLoader implementationLoader) 
<a class="jxr_linenumber" name="155" href="#155">155</a>             <strong class="jxr_keyword">throws</strong> ClassCastException, ClassNotFoundException {
<a class="jxr_linenumber" name="156" href="#156">156</a>         Set&lt;Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt;&gt; implementations = newHashSet();
<a class="jxr_linenumber" name="157" href="#157">157</a>         <em class="jxr_comment">// can't do this using Iterables.transform because we want to throw the exception</em>
<a class="jxr_linenumber" name="158" href="#158">158</a>         <strong class="jxr_keyword">for</strong> (String name : findImplementationNames(serviceClass, implementationLoader)) {
<a class="jxr_linenumber" name="159" href="#159">159</a>             implementations.add((Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt;) implementationLoader.loadClass(name));
<a class="jxr_linenumber" name="160" href="#160">160</a>         }
<a class="jxr_linenumber" name="161" href="#161">161</a>         
<a class="jxr_linenumber" name="162" href="#162">162</a>         <strong class="jxr_keyword">if</strong> (any(implementations, not(assignableFrom(serviceClass)))) {
<a class="jxr_linenumber" name="163" href="#163">163</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> ClassCastException(format(<span class="jxr_string">"Supposed implementations '%s' does/do not implement or extend service class '%s'"</span>,
<a class="jxr_linenumber" name="164" href="#164">164</a>                     filter(implementations, not(assignableFrom(serviceClass))), serviceClass.getName()));
<a class="jxr_linenumber" name="165" href="#165">165</a>         }
<a class="jxr_linenumber" name="166" href="#166">166</a>         <strong class="jxr_keyword">return</strong> implementations;
<a class="jxr_linenumber" name="167" href="#167">167</a>     }
<a class="jxr_linenumber" name="168" href="#168">168</a>     
<a class="jxr_linenumber" name="169" href="#169">169</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">AssignableFromPredicate</a> assignableFrom(Class&lt;?&gt; superclass) {
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">AssignableFromPredicate</a>(superclass);
<a class="jxr_linenumber" name="171" href="#171">171</a>     }
<a class="jxr_linenumber" name="172" href="#172">172</a> 
<a class="jxr_linenumber" name="173" href="#173">173</a>     <em class="jxr_comment">// TODO: move to Predicates</em>
<a class="jxr_linenumber" name="174" href="#174">174</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">AssignableFromPredicate</a> <strong class="jxr_keyword">implements</strong> Predicate&lt;Class&lt;?&gt;&gt; {
<a class="jxr_linenumber" name="175" href="#175">175</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Class&lt;?&gt; superclass;
<a class="jxr_linenumber" name="176" href="#176">176</a>         
<a class="jxr_linenumber" name="177" href="#177">177</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">AssignableFromPredicate</a>(Class&lt;?&gt; superclass) {
<a class="jxr_linenumber" name="178" href="#178">178</a>             <strong class="jxr_keyword">this</strong>.superclass = superclass;
<a class="jxr_linenumber" name="179" href="#179">179</a>         }
<a class="jxr_linenumber" name="180" href="#180">180</a> 
<a class="jxr_linenumber" name="181" href="#181">181</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> apply(Class&lt;?&gt; input) {
<a class="jxr_linenumber" name="182" href="#182">182</a>             <strong class="jxr_keyword">return</strong> superclass.isAssignableFrom(input);
<a class="jxr_linenumber" name="183" href="#183">183</a>         }
<a class="jxr_linenumber" name="184" href="#184">184</a>     }
<a class="jxr_linenumber" name="185" href="#185">185</a>     
<a class="jxr_linenumber" name="186" href="#186">186</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="187" href="#187">187</a> <em class="jxr_javadoccomment">     * Shorthand for {@link #loadImplementations(Class, ClassLoader) loadImplementations(serviceClass, defaultClassLoader)}.</em>
<a class="jxr_linenumber" name="188" href="#188">188</a> <em class="jxr_javadoccomment">     * where {@code defaultClassLoader} is</em>
<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment">     * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment">     * &lt;li&gt;{@link Thread#getContextClassLoader() Thread.currentThread().getContextClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">     * &lt;li&gt;{@link ClassLoader#getSystemClassLoader()} if non-&lt;code&gt;null&lt;/code&gt;</em>
<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment">     * &lt;li&gt;the bootstrap classloader otherwise</em>
<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment">     * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="195" href="#195">195</a> <em class="jxr_javadoccomment">     * @param &lt;S&gt; the type of the service</em>
<a class="jxr_linenumber" name="196" href="#196">196</a> <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="197" href="#197">197</a> <em class="jxr_javadoccomment">     * @return a set of instances of implementations of the service</em>
<a class="jxr_linenumber" name="198" href="#198">198</a> <em class="jxr_javadoccomment">     * @throws ClassNotFoundException if any of the classes cannot be loaded </em>
<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_javadoccomment">     * @throws InstantiationException if any of the classes are not actually implementations</em>
<a class="jxr_linenumber" name="200" href="#200">200</a> <em class="jxr_javadoccomment">     *          of the requested service, or cannot be instantiated using a public no-argument </em>
<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_javadoccomment">     *          constructor                   </em>
<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment">     * @see #loadImplementations(Class, ClassLoader)</em>
<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="204" href="#204">204</a>     <strong class="jxr_keyword">public</strong> @Nonnull &lt;S&gt; Set&lt;S&gt; loadImplementations(@Nonnull Class&lt;S&gt; serviceClass) 
<a class="jxr_linenumber" name="205" href="#205">205</a>             <strong class="jxr_keyword">throws</strong> ClassNotFoundException, InstantiationException {
<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">return</strong> loadImplementations(serviceClass, findDefaultLoader());
<a class="jxr_linenumber" name="207" href="#207">207</a>     }
<a class="jxr_linenumber" name="208" href="#208">208</a> 
<a class="jxr_linenumber" name="209" href="#209">209</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="210" href="#210">210</a> <em class="jxr_javadoccomment">     * Finds the classes implementing the requested service, as determined by the </em>
<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_javadoccomment">     * available providers, and loads an instance of each implementation.</em>
<a class="jxr_linenumber" name="212" href="#212">212</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="213" href="#213">213</a> <em class="jxr_javadoccomment">     * This method will check whether the classes found do, in fact, implement the</em>
<a class="jxr_linenumber" name="214" href="#214">214</a> <em class="jxr_javadoccomment">     * requested service, and an {@code InstantiationException} will be thrown if any</em>
<a class="jxr_linenumber" name="215" href="#215">215</a> <em class="jxr_javadoccomment">     * of the classes does not.</em>
<a class="jxr_linenumber" name="216" href="#216">216</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="217" href="#217">217</a> <em class="jxr_javadoccomment">     * Service classes are expected to provide a public, no-argument constructor, which</em>
<a class="jxr_linenumber" name="218" href="#218">218</a> <em class="jxr_javadoccomment">     * will be invoked to create instances of the implementation classes found. An</em>
<a class="jxr_linenumber" name="219" href="#219">219</a> <em class="jxr_javadoccomment">     * {@code InstantiationException} is thrown if the class cannot be instantiated.</em>
<a class="jxr_linenumber" name="220" href="#220">220</a> <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a class="jxr_linenumber" name="221" href="#221">221</a> <em class="jxr_javadoccomment">     * If more lenient behaviour is desired (e.g. skipping any classes that cannot be</em>
<a class="jxr_linenumber" name="222" href="#222">222</a> <em class="jxr_javadoccomment">     * found, or do not actually implement the interface), use </em>
<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment">     * {@link #findImplementationNames(Class)} instead.</em>
<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment">     * @param &lt;S&gt; the type of the service</em>
<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment">     * @param serviceClass the class of the service</em>
<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment">     * @param implementationLoader the class loader to be used to attempt to load the classes</em>
<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment">     * @return a set of instances of implementations of the service</em>
<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment">     * @throws ClassNotFoundException if any of the classes cannot be loaded </em>
<a class="jxr_linenumber" name="230" href="#230">230</a> <em class="jxr_javadoccomment">     * @throws InstantiationException if any of the classes are not actually implementations</em>
<a class="jxr_linenumber" name="231" href="#231">231</a> <em class="jxr_javadoccomment">     *          of the requested service, or cannot be instantiated using a public no-argument </em>
<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_javadoccomment">     *          constructor                   </em>
<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment">     * @see #loadImplementations(Class)</em>
<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="235" href="#235">235</a>     <strong class="jxr_keyword">public</strong> @Nonnull &lt;S&gt; Set&lt;S&gt; loadImplementations(@Nonnull Class&lt;S&gt; serviceClass, 
<a class="jxr_linenumber" name="236" href="#236">236</a>             @Nonnull <strong class="jxr_keyword">final</strong> ClassLoader implementationLoader) <strong class="jxr_keyword">throws</strong> ClassNotFoundException, 
<a class="jxr_linenumber" name="237" href="#237">237</a>                 InstantiationException {
<a class="jxr_linenumber" name="238" href="#238">238</a>         Set&lt;Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt;&gt; implementationClasses;
<a class="jxr_linenumber" name="239" href="#239">239</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="240" href="#240">240</a>             implementationClasses = findImplementations(serviceClass, implementationLoader);
<a class="jxr_linenumber" name="241" href="#241">241</a>         } <strong class="jxr_keyword">catch</strong> (ClassCastException exception) {
<a class="jxr_linenumber" name="242" href="#242">242</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> InstantiationException(format(<span class="jxr_string">"Unable to load implementation classes for service class '%s' due to: %s"</span>,
<a class="jxr_linenumber" name="243" href="#243">243</a>                     serviceClass, exception.getMessage()));
<a class="jxr_linenumber" name="244" href="#244">244</a>         }
<a class="jxr_linenumber" name="245" href="#245">245</a>         
<a class="jxr_linenumber" name="246" href="#246">246</a>         Set&lt;S&gt; implementations = newHashSetWithExpectedSize(implementationClasses.size());
<a class="jxr_linenumber" name="247" href="#247">247</a>         <em class="jxr_comment">// can't use Iterables.transform because we want to throw the exception</em>
<a class="jxr_linenumber" name="248" href="#248">248</a>         <strong class="jxr_keyword">for</strong> (Class&lt;? <strong class="jxr_keyword">extends</strong> S&gt; implementationClass : implementationClasses) {
<a class="jxr_linenumber" name="249" href="#249">249</a>             implementations.add(instanceFactory.newInstance(implementationClass));
<a class="jxr_linenumber" name="250" href="#250">250</a>         }
<a class="jxr_linenumber" name="251" href="#251">251</a>         <strong class="jxr_keyword">return</strong> implementations;
<a class="jxr_linenumber" name="252" href="#252">252</a>     }
<a class="jxr_linenumber" name="253" href="#253">253</a>     
<a class="jxr_linenumber" name="254" href="#254">254</a>     <em class="jxr_comment">// ready to be factored out into an external interface with pluggable implementations</em>
<a class="jxr_linenumber" name="255" href="#255">255</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">interface</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">InstanceFactory</a> {
<a class="jxr_linenumber" name="256" href="#256">256</a>         @Nonnull &lt;T&gt; T newInstance(@Nonnull Class&lt;T&gt; clazz) <strong class="jxr_keyword">throws</strong> InstantiationException;
<a class="jxr_linenumber" name="257" href="#257">257</a>     }
<a class="jxr_linenumber" name="258" href="#258">258</a>     
<a class="jxr_linenumber" name="259" href="#259">259</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">PublicNoargConstructorInstanceFactory</a> <strong class="jxr_keyword">implements</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">InstanceFactory</a> {
<a class="jxr_linenumber" name="260" href="#260">260</a>         <strong class="jxr_keyword">public</strong> &lt;T&gt; T newInstance(Class&lt;T&gt; clazz) <strong class="jxr_keyword">throws</strong> InstantiationException {
<a class="jxr_linenumber" name="261" href="#261">261</a>             Constructor&lt;T&gt; publicNoargConstructor;
<a class="jxr_linenumber" name="262" href="#262">262</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="263" href="#263">263</a>                 publicNoargConstructor = clazz.getConstructor();
<a class="jxr_linenumber" name="264" href="#264">264</a>             } <strong class="jxr_keyword">catch</strong> (NoSuchMethodException exception) {
<a class="jxr_linenumber" name="265" href="#265">265</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> InstantiationException(format(<span class="jxr_string">"Unable to find public no-argument constructor for class '%s' due to: %s"</span>,
<a class="jxr_linenumber" name="266" href="#266">266</a>                         clazz, exception.getMessage()));
<a class="jxr_linenumber" name="267" href="#267">267</a>             }
<a class="jxr_linenumber" name="268" href="#268">268</a>             
<a class="jxr_linenumber" name="269" href="#269">269</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="270" href="#270">270</a>                 <strong class="jxr_keyword">return</strong> publicNoargConstructor.newInstance();
<a class="jxr_linenumber" name="271" href="#271">271</a>             } <strong class="jxr_keyword">catch</strong> (InvocationTargetException exception) {
<a class="jxr_linenumber" name="272" href="#272">272</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> InstantiationException(format(<span class="jxr_string">"Unable to create new instance of class '%s' due to exception in constructor '%s': %s: %s"</span>,
<a class="jxr_linenumber" name="273" href="#273">273</a>                         clazz, publicNoargConstructor, exception.getCause(), exception.getCause().getMessage()));
<a class="jxr_linenumber" name="274" href="#274">274</a>             } <strong class="jxr_keyword">catch</strong> (IllegalAccessException exception) {
<a class="jxr_linenumber" name="275" href="#275">275</a>                 <em class="jxr_comment">// should not happen - the constructor takes no args and we're calling it with no args</em>
<a class="jxr_linenumber" name="276" href="#276">276</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> AssertionError(format(<span class="jxr_string">"Caught IllegalAccessException '%s' calling public constructor '%s' for class '%s'?!?"</span>, 
<a class="jxr_linenumber" name="277" href="#277">277</a>                         exception.getMessage(), publicNoargConstructor, clazz));
<a class="jxr_linenumber" name="278" href="#278">278</a>             } <strong class="jxr_keyword">catch</strong> (IllegalArgumentException exception) {
<a class="jxr_linenumber" name="279" href="#279">279</a>                 <em class="jxr_comment">// should not happen - the constructor takes no args and we're calling it with no args</em>
<a class="jxr_linenumber" name="280" href="#280">280</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> AssertionError(format(<span class="jxr_string">"Caught IllegalArgumentException '%s' calling no-argument constructor '%s' for class '%s' with no arguments?!?"</span>, 
<a class="jxr_linenumber" name="281" href="#281">281</a>                         exception.getMessage(), publicNoargConstructor, clazz));
<a class="jxr_linenumber" name="282" href="#282">282</a>             }
<a class="jxr_linenumber" name="283" href="#283">283</a>         }
<a class="jxr_linenumber" name="284" href="#284">284</a>     }
<a class="jxr_linenumber" name="285" href="#285">285</a>     
<a class="jxr_linenumber" name="286" href="#286">286</a>     @VisibleForTesting
<a class="jxr_linenumber" name="287" href="#287">287</a>     @ThreadSafe
<a class="jxr_linenumber" name="288" href="#288">288</a>     <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">ClassLoaderSupplier</a> {
<a class="jxr_linenumber" name="289" href="#289">289</a>         <em class="jxr_comment">// the default implementation uses the bootstrap loader if it finds a null parent</em>
<a class="jxr_linenumber" name="290" href="#290">290</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> ClassLoader BOOTSTRAP_LOADER = <strong class="jxr_keyword">new</strong> ClassLoader(<strong class="jxr_keyword">null</strong>) {};
<a class="jxr_linenumber" name="291" href="#291">291</a>         
<a class="jxr_linenumber" name="292" href="#292">292</a>         ClassLoader getContextClassLoader() {
<a class="jxr_linenumber" name="293" href="#293">293</a>             <strong class="jxr_keyword">return</strong> Thread.currentThread().getContextClassLoader();
<a class="jxr_linenumber" name="294" href="#294">294</a>         }
<a class="jxr_linenumber" name="295" href="#295">295</a>         
<a class="jxr_linenumber" name="296" href="#296">296</a>         ClassLoader getSystemClassLoader() {
<a class="jxr_linenumber" name="297" href="#297">297</a>             <strong class="jxr_keyword">return</strong> ClassLoader.getSystemClassLoader();
<a class="jxr_linenumber" name="298" href="#298">298</a>         }
<a class="jxr_linenumber" name="299" href="#299">299</a>         
<a class="jxr_linenumber" name="300" href="#300">300</a>         @Nonnull ClassLoader getBootstrapClassLoader() {
<a class="jxr_linenumber" name="301" href="#301">301</a>             <strong class="jxr_keyword">return</strong> BOOTSTRAP_LOADER;
<a class="jxr_linenumber" name="302" href="#302">302</a>         }
<a class="jxr_linenumber" name="303" href="#303">303</a>     }
<a class="jxr_linenumber" name="304" href="#304">304</a>     
<a class="jxr_linenumber" name="305" href="#305">305</a>     <em class="jxr_comment">/*<em class="jxr_comment"> (non-Javadoc)</em></em>
<a class="jxr_linenumber" name="306" href="#306">306</a> <em class="jxr_comment">     * @see java.lang.Object#hashCode()</em>
<a class="jxr_linenumber" name="307" href="#307">307</a> <em class="jxr_comment">     */</em>
<a class="jxr_linenumber" name="308" href="#308">308</a>     @Override
<a class="jxr_linenumber" name="309" href="#309">309</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> hashCode() {
<a class="jxr_linenumber" name="310" href="#310">310</a>         <strong class="jxr_keyword">return</strong> providers.hashCode();
<a class="jxr_linenumber" name="311" href="#311">311</a>     }
<a class="jxr_linenumber" name="312" href="#312">312</a> 
<a class="jxr_linenumber" name="313" href="#313">313</a>     <em class="jxr_comment">/*<em class="jxr_comment"> (non-Javadoc)</em></em>
<a class="jxr_linenumber" name="314" href="#314">314</a> <em class="jxr_comment">     * @see java.lang.Object#equals(java.lang.Object)</em>
<a class="jxr_linenumber" name="315" href="#315">315</a> <em class="jxr_comment">     */</em>
<a class="jxr_linenumber" name="316" href="#316">316</a>     @Override
<a class="jxr_linenumber" name="317" href="#317">317</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object obj) {
<a class="jxr_linenumber" name="318" href="#318">318</a>         <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong> == obj)
<a class="jxr_linenumber" name="319" href="#319">319</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="320" href="#320">320</a>         <strong class="jxr_keyword">if</strong> (obj == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="321" href="#321">321</a>             <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="322" href="#322">322</a>         <strong class="jxr_keyword">if</strong> (getClass() != obj.getClass())
<a class="jxr_linenumber" name="323" href="#323">323</a>             <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="324" href="#324">324</a>         <a href="../../../../com/qrmedia/commons/multispi/MultiSpi.html">MultiSpi</a> other = (MultiSpi) obj;
<a class="jxr_linenumber" name="325" href="#325">325</a>         <strong class="jxr_keyword">if</strong> (!providers.equals(other.providers))
<a class="jxr_linenumber" name="326" href="#326">326</a>             <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="327" href="#327">327</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="328" href="#328">328</a>     }
<a class="jxr_linenumber" name="329" href="#329">329</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>

